Ready to Go?

Description

We found a network connection that contains an unknown proprietary protocol. Can you understand the application that implements it?

Files

docker-compose.yml
ready-to-go.pcapng
1.39 KiB – ea1fe00b181c440b0d0433b243e563fc4eb21e27d07ed7536a8303271f0af835

Author

ElyKar

Challenge Instructions

First, download docker-compose.yml:
curl https://hackropole.fr/challenges/fcsc2026-misc-rpc-me/docker-compose.public.yml -o docker-compose.yml
Launch the challenge by executing in the same folder:
docker compose up
Then, in another console, access the challenge with Netcat:
nc localhost 4000

⚠️ Important: You must solve the challenge by interacting with the Docker container through the exposed network port. Any other way is not considered valid.

In case you encounter problems, please consult the FAQ.

Flag

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Writeups

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Date	Author	Language	Tags
2026-05-14	tiphergane	🇫🇷